<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="班级名" prop="name">
        <el-input
          v-model="queryParams.name"
          placeholder="请输入班级名"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="专业ID" prop="deptId">
        <el-input
          v-model="queryParams.deptId"
          placeholder="专业ID"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="班级人数" prop="classSize">
        <el-input
          v-model="queryParams.classSize"
          placeholder="请输入班级人数"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="缴费金额" prop="payCost">
        <el-input
          v-model="queryParams.payCost"
          placeholder="请输入缴费金额"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="班级负责人ID" prop="userId" label-width="200px">
        <el-input
          v-model="queryParams.userId"
          placeholder="请输入班级负责人ID"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['book:teachclass:add']"
        >新增
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['book:teachclass:edit']"
        >修改
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['book:teachclass:remove']"
        >删除
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['book:teachclass:export']"
        >导出
        </el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="teachclassList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center"/>
      <el-table-column label="班级ID" align="center" prop="classId"/>
      <el-table-column label="班级名" align="center" prop="name"/>
      <el-table-column label="专业" align="center" prop="deptName"/>
      <el-table-column label="班级负责人" align="center" prop="userName"/>
      <el-table-column label="班级人数" align="center" prop="classSize" />
      <el-table-column label="缴费金额" align="center" prop="payCost" />
      <el-table-column label="状态" align="center" prop="status">
        <template slot-scope="scope">
          <dict-tag :options="dict.type.sys_common_status" :value="scope.row.status"/>
        </template>
      </el-table-column>
      <el-table-column label="创建时间" align="center" prop="createTime" width="180">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.createTime, '{y}-{m}-{d} {h}:{i}:{s}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="备注" align="center" prop="remark"/>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['book:teachclass:edit']"
          >修改
          </el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['book:teachclass:remove']"
          >删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改班级列表对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="班级名" prop="name">
          <el-input v-model="form.name" placeholder="请输入班级名"/>
        </el-form-item>
        <el-form-item label="专业名" prop="deptId">
          <treeselect v-model="form.deptId" :options="deptOptions" :show-count="true" placeholder="请选择专业"/>
        </el-form-item>
        <el-form-item label="班级负责人" prop="userId" label-width="100px">
          <el-select v-model="form.userId" placeholder="请选择班级负责">
            <el-option
              v-for="item in stuList"
              :key="item.userId"
              :label="item.nickName"
              :value="item.userId"
            ></el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="班级人数" prop="classSize">
          <el-input v-model="form.classSize" placeholder="请输入班级人数" />
        </el-form-item>
        <el-form-item label="缴费金额" prop="payCost">
          <el-input v-model="form.payCost" placeholder="请输入缴费金额" />
        </el-form-item>
        <el-form-item label="备注" prop="remark">
          <el-input v-model="form.remark" type="textarea" placeholder="请输入内容"/>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import {
  listTeachclass,
  getTeachclass,
  delTeachclass,
  addTeachclass,
  updateTeachclass,
  listTeachClassStuList
} from '@/api/book/teachclass'
import { treeselect } from '@/api/system/dept'
import Treeselect from '@riophae/vue-treeselect'
import '@riophae/vue-treeselect/dist/vue-treeselect.css'

export default {
  name: 'Teachclass',
  dicts: ['sys_common_status'],
  components: { Treeselect },
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 班级列表表格数据
      teachclassList: [],
      // 班级学生用户
      stuList: [],
      // 部门树选项
      deptOptions: undefined,
      // 弹出层标题
      title: '',
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        name: null,
        deptId: null,
        userId: null,
        status: null
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        name: [
          { required: true, message: '班级名不能为空', trigger: 'blur' }
        ],
        deptId: [
          { required: true, message: '专业ID不能为空', trigger: 'blur' }
        ],
        userId: [
          { required: true, message: '班级负责人的用户ID不能为空', trigger: 'blur' }
        ],
        status: [
          { required: true, message: '0表示未删除，1表示已删除不能为空', trigger: 'blur' }
        ]
      }
    }
  },
  created() {
    this.getList()
    this.getTreeselect(this.$store.state.user.classId)
  },
  methods: {
    /** 查询班级列表列表 */
    getList() {
      this.loading = true
      listTeachclass(this.queryParams).then(response => {
        this.teachclassList = response.rows
        this.total = response.total
        this.loading = false
      })
    },
    // 取消按钮
    cancel() {
      this.open = false
      this.reset()
    },
    // 表单重置
    reset() {
      this.form = {
        classId: null,
        name: null,
        deptId: null,
        userId: null,
        status: '0',
        createTime: null,
        updateTime: null,
        remark: null
      }
      this.resetForm('form')
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1
      this.getList()
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm('queryForm')
      this.handleQuery()
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.classId)
      this.single = selection.length !== 1
      this.multiple = !selection.length
    },
    /** 查询部门下拉树结构 */
    getTreeselect(classId) {
      treeselect().then(response => {
        this.deptOptions = response.data
      })
      if (null != classId) {
        listTeachClassStuList(classId).then(response => {
          this.stuList = response
          this.form.stuList = this.stuList
          console.log(response)
        })
      }
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset()
      this.getTreeselect(this.$store.state.user.classId)
      this.open = true
      this.title = '添加班级列表'
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset()
      const classId = row.classId || this.ids
      this.getTreeselect(classId)
      getTeachclass(classId).then(response => {
        this.form = response.data
        this.open = true
        this.title = '修改班级列表'
      })
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs['form'].validate(valid => {
        if (valid) {
          if (this.form.classId != null) {
            updateTeachclass(this.form).then(response => {
              this.$modal.msgSuccess('修改成功')
              this.open = false
              this.getList()
            })
          } else {
            addTeachclass(this.form).then(response => {
              this.$modal.msgSuccess('新增成功')
              this.open = false
              this.getList()
            })
          }
        }
      })
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const classIds = row.classId || this.ids
      this.$modal.confirm('是否确认删除班级列表编号为"' + classIds + '"的数据项？').then(function() {
        return delTeachclass(classIds)
      }).then(() => {
        this.getList()
        this.$modal.msgSuccess('删除成功')
      }).catch(() => {
      })
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('book/teachclass/export', {
        ...this.queryParams
      }, `teachclass_${new Date().getTime()}.xlsx`)
    }
  }
}
</script>
